What was found
AFT CARGO BAY DOOR CUTOUT FWD SHIELD IS CORRODED FROM BS 767 TO 787+6; RBL 23; WL 158. / REMOVED AND EVALUATED SHIELD ON AFT CARGO BAY AT RBL 23 BTW BS 767- BS 787; NO FOUND ALLOWABLE DAMAGE LIMITS; DUE NOT LIMITS IN SRM PART WILL BE REPAIRABLE BY REPLACEMENT. IAW. SRM 51-40-02-0G-0; SRM 51-10-02-0G-0; STEP 9.; VERIFIED CORRECTIVE ACTION 1; RECEIVED SHIELD NEW AFT CARGO BAY DOOR CUTOUT BS 767 TO 787+6 RBL 23 WL 158 ITEM 146A8127U12 PO # 849483. LOCATED & DRILLED IAW SRM 51-40-05 AND DWG 146A0081; INSTALLED NEW SHIELD ON AFT CARGO BAY AT RBL 23 BTW BS 767- BS 787 ITEM#146A8127U12 PER SRM 51-40-02-0G-0; DWG#146A0081.